Boiler Fill Valves
FM Boiler Fill Valves
Inlet
Product Number
FM450/U Sweat or
FM911/U Sweat or
Connection
Type
Threaded
Threaded
Maximum Operating
Pressure
150 psi 1034 kPa 4 psi to 60 psi yes 4 1/8 in. high x
150 psi 1034 kPa 4 psi to 60 psi yes — 4 lb 1/2 in. NPT Backflow preventer and boiler
Regulating
Pressure
Range (psi)
Pressure regulating valve for automatic control of boiler feed water
and other pressure reducing applications. Especially constructed
for expansion tank mounting.
• Fast fill feature.
• Built in check valve.
Application: Fast fill pressure regulating boiler feed valve with check
valve.
Connection Type: NPT
Inlet Connection Size: 1/2 in.
Pipe Size: 1/2 in.
Materials (Body): Brass
Maximum Ambient Temperature: 212 F (100 C)
Dimensions,
FAS T
Fill
Approximate
(inch)
5 5/16 in. long
Weight
(lb) Description(psi) (kPa)
1.8 lb 1/2 in. sweat union pressure reducing
valve, includes union nut and both sweat
and NPT tailpiece
fill valve assembly, includes union nut and
both sweat and NPT tailpiece
Controls
Hydronic
70-6910 227